English Harold Irving Ewen Cited by user Praemonitus on 02 May 2023 Harold Irving "Doc" Ewen (March 5, 1922 – October 8, 2015) was an American physicist, radio astronomer, and business executive.
French Radar Würzburg Cited by user 90.2.232.85 on 27 Dec 2021 Le radar Würzburg (radar Wurtzbourg) a été le premier système de radar au sol pour le guidage d'artillerie de la Luftwaffe et de l'armée allemande pendant la Seconde…